CMMG 5.7 Conversion Barrel & BCG Kit 5.7X28MM 8" Pistol AR15

Description

CMMG 5.7 Conversion Barrel & BCG Kit 5.7X28MM 8" Pistol AR15 AR-15 PDW CQB Mk57 AR57

The 8" 5.7x28mm Barrel and BCG Kit is perfect for building an AR pistol or SBR in 5.7x28mm using CMMG's patented Radial Delayed Blowback operating system. Unlike typical direct blowback systems, Radial Delayed Blowback not only reduces the weight in your BCG but it results in less felt recoil than a straight blowback system and still provides essential features like last round bolt hold open. CMMG's 5.7x28mm Barrel and Bolt Kits are designed to be assembled into a Mk4/mil-spec AR15 upper and work with either a CMMG Mk57 lower receiver or Mk4/AR15 mil-spec lower receiver (when using CMMG 5.7 AR Conversion Magazines).

Ultralight and compact while bringing higher capacity and power, the 5.7 caliber is a fantastic Close Quarters CQB Personal Defensive Weapon PDW choice for your next Short Barreled Rifles (SBR’s- All NFA Rules Apply) or AR pistol build.

Includes:

CMMG 8” Medium Taper 4140CM SBN
CMMG 5.7 BCG INCLUDED

Optional ADD-ON:

32 Round Mag

CMMG’s GEN2 5.7 AR Conversion Magazine holds 32 rounds of 5.7x28mm and fits in any standard AR15 lower receiver. To use, simply attach a CMMG 5.7x28mm Radial Delayed Blowback complete upper receiver to an existing AR15 lower. Then, insert CMMG’s 5.7 AR Conversion Magazine to safely feed 5.7x28mm ammunition. CMMG recommends using a standard carbine buffer and action spring to reliably cycle the action in this configuration. The 5.7 AR Conversion Magazine also retains last round bolt hold-open functionality, allowing for faster reloads.

CALIBER: 5.7x28mm

CAPACITY: 32 rounds

WEIGHT: 8oz(unloaded)

CMMG 5.7 Conversion Barrel & BCG Kit 5.7X28MM 8" Pistol AR15 AR-15 PDW CQB Mk57 AR57

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CMMG 5.7 Conversion Barrel & BCG Kit 5.7X28MM 8" Pistol AR15 AR-15 PDW CQB Mk57 AR57

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